电子测量技术
電子測量技術
전자측량기술
ELECTRONIC MEASUREMENT TECHNOLOGY
2015年
7期
50-53
,共4页
FPGA%雷达天线%方位角%光电编码
FPGA%雷達天線%方位角%光電編碼
FPGA%뢰체천선%방위각%광전편마
FPGA%radar antenna%azimuth%optical encoder
为满足天线离线状态下的雷达测试需求，设计开发一种基于 FPGA 的雷达天线方位角信号的模拟系统。雷达天线方位角信号的模拟对雷达信号处理机性能的测试显得尤为重要，设计以伺服控制输出的 PWM信号、电机转动方向控制信号和制动信号作为输入参数，计算出雷达天线的方位角位置，并转换为光电编码传感器的脉冲信号输出给雷达信号处理机。该模拟系统具有输入输出信号属性与雷达天线单元一致、易实现等优点，并已应用于某型雷达测试系统，实践证明效果良好。
為滿足天線離線狀態下的雷達測試需求，設計開髮一種基于 FPGA 的雷達天線方位角信號的模擬繫統。雷達天線方位角信號的模擬對雷達信號處理機性能的測試顯得尤為重要，設計以伺服控製輸齣的 PWM信號、電機轉動方嚮控製信號和製動信號作為輸入參數，計算齣雷達天線的方位角位置，併轉換為光電編碼傳感器的脈遲信號輸齣給雷達信號處理機。該模擬繫統具有輸入輸齣信號屬性與雷達天線單元一緻、易實現等優點，併已應用于某型雷達測試繫統，實踐證明效果良好。
위만족천선리선상태하적뢰체측시수구，설계개발일충기우 FPGA 적뢰체천선방위각신호적모의계통。뢰체천선방위각신호적모의대뢰체신호처리궤성능적측시현득우위중요，설계이사복공제수출적 PWM신호、전궤전동방향공제신호화제동신호작위수입삼수，계산출뢰체천선적방위각위치，병전환위광전편마전감기적맥충신호수출급뢰체신호처리궤。해모의계통구유수입수출신호속성여뢰체천선단원일치、역실현등우점，병이응용우모형뢰체측시계통，실천증명효과량호。
In order to meet the need of radar testing in the state of antenna being off-line,a signal simulation system of radar antenna azimuth based on FPGA is designed.The signal simulation of radar antenna azimuth is very important for the test of radar signal processor.The PWM signal,direction control signal and braking signal of motor given by servo control system are used to compute the azimuth position of radar antenna which is processed to be simulating pulses of optical encoder sensor and outputed to radar signal processor.The simulation system has such advantages as that the attributes of input/output signal are in line with those of radar antenna and the method is simple to implement,which has been applied to the radar testing system of a certain type.Practice proves that the effect is good.
